A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5945-00-648-0552
NSN 4140-01-289-1264
NSN 5835-01-652-0168
NSN 5965-00-567-7679
NSN 6150-00-290-8125
NSN 5925-01-050-8410
NSN 5975-01-257-3198
NSN 5990-01-357-6175
NSN 6150-01-093-6301
NSN 6105-00-430-2378
NSN 5905-01-423-9339
NSN 6135-01-475-3671